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Uranium is a contaminant of interest due to its toxicity and mobility in groundwater. It is a redox active element in which the oxidation state can change by the addition or removal of electrons. In one method of groundwater ...

Mercury (Hg) is a redox active global contaminant. Hg has two stable oxidation states in the environment, Hg(0) and Hg(II). Hg(0) is significantly less soluble than Hg(II) and is less reactive. Hg(II) is very soluble and ...

Over the course of the past decade, our understanding of silicic plutons has undergone a fundamental shift, from envisioning pluton emplacement as one large magmatic intrusion to the concept of incremental emplacement, in ...

Chromium and uranium naturally occur in a variety of Earth’s waters. Both elements can
undergo valence state changes at surface conditions which control their chemical behavior in
near surface settings. Reduction of ...

Although modern Metazoan corals construct Earth’s wave-resistant coral reefs, serve as a cornerstone of marine ecology, and may help mitigate the accumulation of greenhouse gases by building a skeleton (composed of a calcium ...